Press stud



F. Goum. PRESS STUD. APPLICATION FILED SEPT. 3. I92I.

Patented Feb. 28, 1922.

UNITED STATES PATENT OFFICE.

FLORIS GrOUBERT,` 0F PARIS, FRANCE.

PRESS STUD.

incassa.

Specification of Letters Patent. Patented Feb, 2S, 1922 Application led September 3, 1921. Serial No. 498,299.

'new and useful Press Stud, (for which I have filed an application in France July 5, 1918,) which improvements are fully set forth in the following specification.

The present invention relates to a pressstud represented for example on theannexed drawing. Y

Figure l is a face view of the female part of the press-stud.

Figure 2 is a transverse section on line 5L-A of Figure l.

Figure 3 is a view of the spring alone.

Figures 4, 5 and 6 represent a modification.

The essential characteristic of the invention consists in combining the cup-shaped female part of a press-studv With the spring a (Figure 3) so shaped as to contribute to the solidity of the connection between the male and female parts when these arejoined. The spring is secured at o by means of a finger stamped out of the metal plate forming the female part and turned down. The branches b o of the spring properly bent are made to enter the notches cut laterally in the base of the up turned flap o of the plate. This disposition is clearly shown Figure 2.

If the upturned flap, instead of being single as per Figures l, 2, 3, is double as in Figures 4-5-6 the spring slightly modified enters the notches formed in the bases of the upturned flaps c', c (see Fig. 5) and is maintained in position by means of the finger Z). Y

It is understood that the shape of the spring may vary as the only essential feature 1s the means for fixing the spring in the cupshaped female part of the kpress-stud.

What I claim is:

A fastener, comprising a cup-shaped female member having an upstanding fiap provided With a pair of opposite notches; a spring mounted in said member and having a part disposed against the rim thereof and having other parts engaged in said notches;

and a finger on said member overlying the first-named part of the spring to secure the latter in place.

In testimony whereof I have signed this specification in the presence of tivo subscribing Witnesses.

FLORIS GOUBERT. Witnesses: Y FERNAND DUPoUn, CHARLES LEON LoIsn. 

